Butt rails, drop d's or waist d's

[happy-diver]

GETTING SIDEMOUNT TANKS TO BEHAVE THEMSELVES AND SIT WHERE THEY SHOULD

 

[Subcooled]

Just wondered if people stil used butt rails or dropped d's

I have two D-rings near my spine on my belt harness and I do rig my steel cylinders there (for cold water diving). Hence, no butt rails o dropped d's.